Which three defenses does the heat-sensitive label refer to?

The "three defenses" of heat-sensitive label paper refers to the following three protective characteristics:

Waterproof: The heat-resistant label paper has good waterproof performance, which means that even in a humid environment or in contact with water, the text and image on the label will not easily blur or fade. This characteristic makes it ideal for use in wet or rainy environments.

Oil resistant: The paper also has oil resistant ability, even when in contact with oil, the content of the label remains legible. This is especially important for labels that need to be used in the kitchen, food processing and other places where grease is easily accessible.

Anti-pvc (or anti-alcohol, anti-scratch) : the three heat-resistant label paper can resist the erosion of PVC, alcohol and other chemicals, and can maintain the integrity of the information when it is scratched. This durability allows the label to remain legible through daily friction or the occasional bump.

In summary, the "three-proof" function of the three-proof thermal label paper ensures that the label can maintain clarity and durability in a variety of harsh environments, thus meeting the stringent requirements for label quality in different industries.